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Appendix A Specifications
AT-MIO-16X User Manual A-8
©
National Instruments Corporation
Differential nonlinearity in a DAC is a measure of deviation of code
width from 1 LSB. For a DAC, code width is the difference between the
analog values produced by consecutive digital codes. A specification of
±0.5 LSB differential nonlinearity ensure that the code width is always
greater than 0.5 LSB (guaranteeing monotonicity) and less than 1.5
LSB.
Digital I/O
Compatibility ..................................... TTL-compatible
Output current source capability......... Can source 2.6 mA at V
OH
at
2.4 V min
Output current sink capability ............ Can sink 24 mA at V
OL
at
0.5 V max
Timing I/O
Number of channels ........................... 3 counter/timers
1 frequency output
Resolution.......................................... 16-bit for 3 counter/timers,
4-bit for frequency output
channel
Base clock available........................... 5 MHz, 1 MHz, 100 kHz,
10 kHz, 1 kHz, 100 Hz
Base clock accuracy ........................... ±0.01%
Compatibility ..................................... TTL-compatible inputs and
outputs. Counter gate and source
inputs are pulled up with 4.7-kΩ
resistors onboard.
Counter input frequency..................... 6.9 MHz maximum (145-nsec
period) with a minimum pulse
width of 70 nsec